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We specialize in various packaging mould such as PET preform mould, preform mould, PET mould, and bottle cap mould.

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  • The elements of pet plastic preform molding and common quality defects

    Dec 09,2022

    The main elements of pet plastic preform molding include plastic processing, selection of injection molding machines, design of molds and gates, etc. Only by properly handling these elements can we produce high-quality products. However, sometimes there will be some quality defects, such as yellowing of the preform, excessive change rate of wall thickness, etc., which need to be discovered and solved in time to avoid affecting its normal use. What are the elements of pet plastic bottle preform ......

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  • The principle of prefabricated die

    Dec 01,2022

    Prefabricated part mould is a cement product mould of Baoding Jianfeng mould, commonly known as prefabricated part mould, prefabricated part mould or concrete prefabricated part mould. It is specialized in the production of prefabricated part mould and mould. It is usually used in high-speed roadside, high-speed railway side, road roadside, highway roadside and some river, reservoir, dam, embankment, mountain and other places. According to these characteristics, prefabricated die is also called:......

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  • Process issues that need to be paid attention to in injection molding PET preforms

    Nov 25,2022

    Process issues that need to be paid attention to in injection molding PET preforms 1. Handling of plastics Since PET macromolecules contain lipid groups and have a certain degree of hydrophilicity, pellets are sensitive to water at high temperatures. When the moisture content exceeds the limit, the molecular weight of PET decreases during processing, and the product becomes colored and brittle. Therefore, before processing, the material must be dried, and the drying temperature is 150°C for mor......

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